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membrane tag activity
Term Information
Accession
GO:0141048
Name
membrane tag activity
Ontology
molecular_function
Synonyms
lipid tag, covalent modifier
Alternate IDs
None
Definition
A molecular function exhibited by a protein that is covalently attached (AKA tagged or conjugated) to a lipid, where it acts as a marker for a membrane, recognized by the cellular apparatus to target the tagged protein for some cellular process such as autophagy.
Source:PMID:17632063
Comment
Use this term to annotate conjugated tags, not for conjugating enzymes. At the time of writing, all known gene products with this activity are ubiquitin-like, either based on overall sequence similarity or the presence of common motifs and structures.
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Link
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